// Copyright 2007-2017 Chris Patterson, Dru Sellers, Travis Smith, et. al.
//  
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use
// this file except in compliance with the License. You may obtain a copy of the 
// License at 
// 
//     http://www.apache.org/licenses/LICENSE-2.0 
// 
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
// specific language governing permissions and limitations under the License.
namespace MassTransit.Scoping
{
    using System.Threading.Tasks;
    using GreenPipes;


    public class ScopeConsumerFactory<TConsumer> :
        IConsumerFactory<TConsumer>
        where TConsumer : class
    {
        readonly IConsumerScopeProvider _scopeProvider;

        public ScopeConsumerFactory(IConsumerScopeProvider scopeProvider)
        {
            _scopeProvider = scopeProvider;
        }

        public async Task Send<TMessage>(ConsumeContext<TMessage> context, IPipe<ConsumerConsumeContext<TConsumer, TMessage>> next)
            where TMessage : class
        {
            using (IConsumerScopeContext<TConsumer, TMessage> scope = _scopeProvider.GetScope<TConsumer, TMessage>(context))
            {
                await next.Send(scope.Context).ConfigureAwait(false);
            }
        }

        void IProbeSite.Probe(ProbeContext context)
        {
            var scope = context.CreateConsumerFactoryScope<TConsumer>("scope");
            _scopeProvider.Probe(scope);
        }
    }
}